Weather Records on 20 September 1994

788 weather records were set or tied worldwide on 20 September 1994. Highest significance: Kaumana 88.1, US.

Key Facts for 20 September 1994

On 20 September 1994, 788 weather records were set or tied at long-record stations worldwide.
412 were record highs and 196 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 771 daily.
Kaumana 88.1 set a daily record precipitation of 180.3 mm (7.1 in) on 20 September 1994.
Across 156 earlier years (1812 to 2026) the same calendar date averaged 440 records.

Record Map

788 stations

788 station records on 20 September 1994 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 September 1994: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kaumana 88.1	United States	Record daily precipitation	180.3 mm (7.1 in)	66 of 100 (Major)
Koloko Rsvr 1137	United States	Record daily precipitation	64.3 mm (2.5 in)	60 of 100 (Major)
Maunabo	Puerto Rico [United States]	Record daily precipitation	80.3 mm (3.2 in)	49 of 100 (Notable)
Mombetsu	Japan	Record daily precipitation	73.9 mm (2.9 in)	48 of 100 (Notable)
Federal Pt	United States	Record daily precipitation	91.4 mm (3.6 in)	47 of 100 (Notable)
Ph Wainiha 1115	United States	Record daily precipitation	80.8 mm (3.2 in)	47 of 100 (Notable)
Simferopol	Ukraine	Record high maximum temperature	35.2 C (95.4 F)	45 of 100 (Notable)
Bombana (Cfe)	Mexico	Record low minimum temperature	14.4 C (57.9 F)	44 of 100 (Notable)
Tg Jiu	Romania	Record daily precipitation	51.4 mm (2.0 in)	43 of 100 (Notable)
Henichesk	Ukraine	Record high minimum temperature	21.9 C (71.4 F)	43 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record low minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Caransebes	Romania	Record daily precipitation	31.6 mm (1.2 in)	41 of 100 (Notable)
Deva	Romania	Record daily precipitation	32.9 mm (1.3 in)	38 of 100 (Notable)
Jacksonville	United States	Record daily precipitation	118.9 mm (4.7 in)	38 of 100 (Notable)
Zamboanga	Philippines	Record low maximum temperature	25.1 C (77.2 F)	37 of 100 (Notable)
Magnitogorsk	Russia	Record high minimum temperature	12.4 C (54.3 F)	37 of 100 (Notable)
Buenos Aires Observ	Argentina	Record high maximum temperature	29.4 C (84.9 F)	36 of 100 (Notable)
Kursk	Russia	Record high maximum temperature	29.7 C (85.5 F)	36 of 100 (Notable)
Nikolaev	Ukraine	Record high maximum temperature	32.2 C (90.0 F)	36 of 100 (Notable)
Bridgetown Comparison	Australia	Record high maximum temperature	27.5 C (81.5 F)	35 of 100 (Notable)
Abashiri	Japan	Record daily precipitation	71.1 mm (2.8 in)	35 of 100 (Notable)
Placerville	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Omak 4 N	United States	Record high minimum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Dutch Harbor	United States	Record low minimum temperature	-3.3 C (26.1 F)	35 of 100 (Notable)
Iwamizawa	Japan	Record daily precipitation	56.9 mm (2.2 in)	34 of 100 (Routine)
Aparri	Philippines	Record high minimum temperature	28.0 C (82.4 F)	34 of 100 (Routine)
Uman	Ukraine	Record high maximum temperature	29.3 C (84.7 F)	34 of 100 (Routine)
Moore Haven Lock 1	United States	Record daily precipitation	49.5 mm (1.9 in)	34 of 100 (Routine)
Stehekin 4 NW	United States	Record high maximum temperature	31.1 C (88.0 F)	34 of 100 (Routine)
Kanalohuluhulu 1075	United States	Record daily precipitation	50.3 mm (2.0 in)	34 of 100 (Routine)
Waianae 798	United States	Record daily precipitation	27.7 mm (1.1 in)	34 of 100 (Routine)
Rio Piedras Exp STN	Puerto Rico [United States]	Record low minimum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Ai-Petri	Ukraine	Record high minimum temperature	17.7 C (63.9 F)	33 of 100 (Routine)
Marion	United States	Record low minimum temperature	2.2 C (36.0 F)	33 of 100 (Routine)
Ai-Petri	Ukraine	Record high maximum temperature	26.5 C (79.7 F)	32 of 100 (Routine)
Willows 6 W	United States	Record high maximum temperature	40.0 C (104.0 F)	32 of 100 (Routine)
Granville	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Mana 1026	United States	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Jacksonville NAS	United States	Record daily precipitation	105.2 mm (4.1 in)	32 of 100 (Routine)
Sanalona II	Mexico	Record daily precipitation	70.6 mm (2.8 in)	31 of 100 (Routine)
La Estanzuela (Eele)	Uruguay	Record high minimum temperature	18.0 C (64.4 F)	31 of 100 (Routine)
Parana Aero	Argentina	Record high minimum temperature	23.4 C (74.1 F)	30 of 100 (Routine)
Yahualica de Gonzalez Gallo (	Mexico	Record low minimum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Kon-Kolodez	Russia	Record high maximum temperature	29.5 C (85.1 F)	30 of 100 (Routine)
Vero Beach Intl AP	United States	Record daily precipitation	69.6 mm (2.7 in)	30 of 100 (Routine)
Geraldton Airport	Australia	Record high minimum temperature	17.9 C (64.2 F)	29 of 100 (Routine)
Mexticacan	Mexico	Record low minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record daily precipitation	48.8 mm (1.9 in)	29 of 100 (Routine)
Forest Grove	United States	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
W Lawai 931	United States	Record daily precipitation	27.9 mm (1.1 in)	29 of 100 (Routine)
Gaoua	Burkina Faso	Record low maximum temperature	25.5 C (77.9 F)	29 of 100 (Routine)
Kellerberrin	Australia	Record high maximum temperature	30.7 C (87.3 F)	28 of 100 (Routine)
Yap Island WSO AP	Federated States of Micronesia	Record daily precipitation	62.5 mm (2.5 in)	28 of 100 (Routine)
Puente Jula	Mexico	Record low minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Jajome Alto	Puerto Rico [United States]	Record daily precipitation	63.5 mm (2.5 in)	28 of 100 (Routine)
Lubny	Ukraine	Record high maximum temperature	30.4 C (86.7 F)	28 of 100 (Routine)
Poltava	Ukraine	Record high maximum temperature	30.7 C (87.3 F)	28 of 100 (Routine)
Fujin	China	Record daily precipitation	32.1 mm (1.3 in)	27 of 100 (Routine)
Talisman I	Mexico	Record low minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Jakutsk	Russia	Record high minimum temperature	8.8 C (47.8 F)	27 of 100 (Routine)

Counts by Type and Timescale

788 records

Records set or tied on 20 September 1994 by type: Highest daily maximum 195, Lowest daily maximum 79, Highest daily minimum 217, Lowest daily minimum 117, Heaviest daily rainfall 180.

Records on 20 September 1994 by type
Record type	Records
Highest daily maximum	195
Lowest daily maximum	79
Highest daily minimum	217
Lowest daily minimum	117
Heaviest daily rainfall	180
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 September 1994 by timescale: all-time 0, monthly 17, daily 771.

How Much Records Were Beaten By

640 broken records

Margins by which the 640 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.1. Ties are not counted.

Top 20 by Significance

20 September 1994

Top 20 records on 20 September 1994 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 September 1994	Kaumana 88.1, US	daily rain	180.3 mm (7.1 in)	153.1 mm (6.0 in)	57 years	66 of 100 (Major)
20 September 1994	Koloko Rsvr 1137, US	daily rain	64.3 mm (2.5 in)	50.1 mm (2.0 in)	51 years	60 of 100 (Major)
20 September 1994	Maunabo, PR	daily rain	80.3 mm (3.2 in)	29.5 mm (1.2 in)	92 years	49 of 100 (Notable)
20 September 1994	Mombetsu, JP	daily rain	73.9 mm (2.9 in)	48.9 mm (1.9 in)	16 years	48 of 100 (Notable)
20 September 1994	Federal Pt, US	daily rain	91.4 mm (3.6 in)	56.1 mm (2.2 in)	31 years	47 of 100 (Notable)
20 September 1994	Ph Wainiha 1115, US	daily rain	80.8 mm (3.2 in)	51.8 mm (2.0 in)	20 years	47 of 100 (Notable)
20 September 1994	Simferopol, UA	daily high max	35.2 C (95.4 F)	5.2 C (9.4 F)	84 years	45 of 100 (Notable)
20 September 1994	Bombana (Cfe), MX	daily low min	14.4 C (57.9 F)	2.8 C (5.0 F)	45 years	44 of 100 (Notable)
20 September 1994	Tg Jiu, RO	daily rain	51.4 mm (2.0 in)	26.1 mm (1.0 in)	41 years	43 of 100 (Notable)
20 September 1994	Henichesk, UA	daily high min	21.9 C (71.4 F)	2.1 C (3.8 F)	94 years	43 of 100 (Notable)
20 September 1994	Mayaguez City, PR	daily low min	16.7 C (62.1 F)	1.1 C (2.0 F)	80 years	42 of 100 (Notable)
20 September 1994	Caransebes, RO	daily rain	31.6 mm (1.2 in)	25.7 mm (1.0 in)	21 years	41 of 100 (Notable)
20 September 1994	Deva, RO	daily rain	32.9 mm (1.3 in)	19.4 mm (0.8 in)	21 years	38 of 100 (Notable)
20 September 1994	Jacksonville, US	daily rain	118.9 mm (4.7 in)	63.5 mm (2.5 in)	24 years	38 of 100 (Notable)
20 September 1994	Zamboanga, PH	daily low max	25.1 C (77.2 F)	2.9 C (5.2 F)	41 years	37 of 100 (Notable)
20 September 1994	Magnitogorsk, RU	daily high min	12.4 C (54.3 F)	6.3 C (11.3 F)	56 years	37 of 100 (Notable)
20 September 1994	Buenos Aires Observ, AR	daily high max	29.4 C (84.9 F)	2.4 C (4.3 F)	76 years	36 of 100 (Notable)
20 September 1994	Kursk, RU	daily high max	29.7 C (85.5 F)	1.9 C (3.4 F)	80 years	36 of 100 (Notable)
20 September 1994	Nikolaev, UA	daily high max	32.2 C (90.0 F)	1.8 C (3.2 F)	80 years	36 of 100 (Notable)
20 September 1994	Bridgetown Comparison, AU	daily high max	27.5 C (81.5 F)	0.7 C (1.3 F)	84 years	35 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1812 to 1994

Records set or tied on this calendar date in each year from 1812 to 1994. 1994 had 788 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-20 in each year
Year	Records
1812	1
1837	1
1840	1
1844	1
1848	2
1851	1
1852	1
1854	2
1855	1
1856	2
1859	2
1860	1
1862	1
1870	1
1871	2
1882	2
1883	1
1884	1
1886	2
1887	1
1888	2
1889	8
1891	4
1893	5
1894	1
1895	2
1896	1
1897	16
1898	4
1899	1
1900	2
1901	3
1902	3
1903	3
1904	12
1905	8
1906	22
1907	11
1908	24
1909	10
1910	8
1911	21
1912	34
1913	48
1914	28
1915	239
1916	28
1917	100
1918	59
1919	55
1920	64
1921	40
1922	52
1923	249
1924	329
1925	330
1926	129
1927	169
1928	144
1929	373
1930	102
1931	564
1932	270
1933	223
1934	349
1935	201
1936	133
1937	385
1938	506
1939	312
1940	591
1941	582
1942	436
1943	419
1944	466
1945	406
1946	766
1947	460
1948	454
1949	268
1950	435
1951	267
1952	434
1953	479
1954	628
1955	625
1956	985
1957	514
1958	410
1959	489
1960	352
1961	384
1962	707
1963	290
1964	482
1965	1,180
1966	414
1967	449
1968	617
1969	604
1970	591
1971	884
1972	582
1973	569
1974	771
1975	527
1976	375
1977	776
1978	1,216
1979	767
1980	567
1981	979
1982	911
1983	1,958
1984	895
1985	730
1986	743
1987	856
1988	698
1989	968
1990	743
1991	1,835
1992	718
1993	1,031
1994	788
1995	1,374
1996	1,077
1997	1,282
1998	1,157
1999	923
2000	908
2001	821
2002	845
2003	910
2004	1,156
2005	960
2006	732
2007	645
2008	648
2009	715
2010	1,497
2011	650
2012	549
2013	595
2014	577
2015	439
2016	778
2017	920
2018	1,020
2019	835
2020	630
2021	565
2022	786
2023	482
2024	596
2025	877
2026	682

Download the Data

Data for records on 1994-09-20: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	611
20 to 40	22
40 to 60	5
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1